Tin can



PATENTED FEB. 9, 1904 C. DIESEL. TIN CAN.

APPLICATION FILED DEC. 7, 1903.

10 MODEL.

Wzir E55 E5" UNrTEn STATES Patented February 9, 1904.

PATENT OFFICE.

CONRAD DIESEL, OF CHICAGO, ILLINOIS, ASSIGNOR TO FRANK DIESEL, OFCHICAGO, ILLINOIS.

TIN CAN.

'JIFIGATION forming part of Letters Patent No. 751,784, dated. February9, 1904.

Application filed December '7, 1903. Serial No. 184,102. (No model.)

J (all w/tmn it ntay concern.-

Be it known that I, CONRAD DIEsEL, a citizen of the United States, and aresident of Ohicago, county of k, and State of Illinois, have inventedcertain new and useful Improvements in Tin Cans, of which the followingis a specification and which are illustrated in the accompanyingdrawings, forming a part thereof.

The invention relates to that class of tin cans in which a flat seat isprovided for the cover and the latter is soldered thereto so that it maybe removed by a key, this class of cans being commonly known as roll-topcans. because the cover is rolled about the key in the operation ofremoving it.

The object of the invention is to improve upon the can forming thesubject of the application for Letters Patent, Serial No. 176,905, ofHenry E. Bandlow, in which the upper end of the can-body is providedwith an outstanding flange, which returns upon itself and forms a seatfor the cover, the return portion of the flange projecting inwardlybeyond the wall of the can-body.

In the present invention all of the advantages found in the Bandlow canare retained, while the objectionable overlapping of the inner wall ofthe can-body by the return portion of the flange is overcome, and hencethe contents of the package may be discharged, after the cover has beenremoved, without mutilation.

The invention consists in oifsetting outwardly the body of the can atits upper end and forming an outstanding flange from the top of theofiset, the flange being returned upon itself and the return portionprojecting beyond the outstanding portion, but not projecting beyond theplane of the inner face of the can-body. This ofl'set may take anydesired form, several being shown in the accompanying drawings,illustrating the invention, in which- Figure 1 is a side elevation ofthe can, partly in section, and Figs. 2, 3, 4, and 5 are sectionaldetails of the joint, showing various forms.

The can-body may be of any desired shape. A round can is shown; but theinvention is equally applicable to angular forms. As the bottom of thecan may be secured in any desired manner, I have not deemed itnecessaryto illustrate any form of joint therefor.

The upper edge of the can-body is offset outwardly, and this ofl'set maytake any of the several forms shown in Figs. 2, 3, 4, and 5.

In Fig. 2 the offset 11 is shown as substantially two right angles, thecan-body being bent outwardly and at the outer end of the shoulder thusformed being bent upwardly.

In Fig. 3 the offset takes the form of an outward curve, as shown at 12.

In Fig. 1 the offset 13 is shown as a mere outward flaring of thecan-body Without curvature, and in Fig. 5 the oflset 1 1 takes the formof a quarter circle or one-half of an ordinary beading. From the upperend of this offset, whichever form may be used, the metal isturned-outwardly, as shown at 15, and then bent back upon itself, asshown at 16, thereby forming a flat outstanding flange or seat for thecover. The inner edge of the return portion of this flange projectsbeyond the juncture of the ofl'set and the outstanding portion 15 of theflange, as shown at 17, but does not pass beyond the plane of the innerface of the side wall of the can-body.

The cover 18 is seated upon the return portion 16 of the outstandingflange and is secured thereto by the use of solder. The cover isprovided with an outstanding lug 19, to which a key may be applied forthe purpose of rupturing the joint by rolling back the cover.

The construction described and illustrated, whichever form of offset maybe employed,

provides a recess at the top of the can-body,

of which the overlapping end 17 of the return portion 16 of the flangeis the top wall, so that outward pressure is applied thereto, thusrelieving the strain upon the soldered joint and greatly lessening andpractically wholly overcoming the danger of rupturing the joint.Inasmuch, however, as this instanding ledgedoes not project beyond theinner face of the wall of the can-body it forms no obstacle whatever tothe discharge of the contents of the can, and the same may therefore beremoved, if in solid form, entirely without mutilation.

I claim as my invention 1. A can-body having its upper edge outwardlyoffset and flanged outwardly from the top of the offset, the flangebeing returned upon itself and the return portion overhanging theoutstanding portion but not projecting beyond the plane of the innersurface of the side wall of the can-body.

2. A can-body having its end flared outwardly and provided at the upperend of the flaring portion with an outstanding flange which returns uponitself, forming a coverseat, the inner edge of the return portion of theflange projecting over the flaring portion of the can-body but notbeyond the plane of the inner surface of the body-wall.

3. A can-body having its end curved outwardly and provided with anoutstanding 2O CONRAD DIESEL.

Witnesses:

Lou'rs DrEsEL, LOUIS K. GILLsON.

